A comprehensive Cochrane review assessing early palliative care interventions for adults with primary malignant brain tumors found that evidence remains extremely limited, with only one qualifying randomized trial identified. The included study evaluated early cognitive rehabilitation delivered within two weeks after surgery and reported improvements in visual attention and verbal memory, but no significant effects on executive or logical functioning. Evidence certainty was rated very low due to high performance and attrition bias, along with unclear outcome reporting.
No trials specifically tested early specialist palliative care referral or structured generalist palliative care pathways for this population. As a result, current data are insufficient to determine whether early palliative approaches improve quality of life, symptom control, psychological outcomes, or survival for patients or their caregivers. The authors emphasize the urgent need for well-designed research that clearly defines intervention timing, target populations, and standardized palliative components to support future evidence-based care models.